Improved cord-tightener for curtain-fixtures



UNITED STATESl PATENT CrrrcE.

EDWARD M. JUDD, OF NEW BRITAIN, CONNECTICUT.

IMPROVED CORD-TIGHTENER FOR CURTAIN-FIXTURES.

Specification forming part of Letters Patent No. 36,094, dated August 5, 1862.

To all whom it may concern.-

Beit known that I, EDWARD M. JUDD, of New Britain, in the county of Hartford and State of Connecticut, have invented, made, and applied to use a certain new and useful Improvement in Cord-Tighteners for Window Fig. 2 is a vertical section, and Fig. 3 is a cross-section, thereof. y

Similar marks of reference denote the same parts.

My invention consists in the employment of a blockinglpiece that binds within a slotted box against the window-casing or other article to which the tightener is attached and retains the cord with the' necessary tension, and said blockingpiece is so formed that it can be relieved and the cord slackened up whenever desired.

` In the drawings, a represents a portion of the window-casing or other surface to which the curtain-fixture is attached.

bis a slotted box or slide, open at the back and attached by screws or nails at c c to the said casing a.

dis my blocking-piece, formed with a square shank passing through the slot in b, and on each side of said shank are the wings e e, and at the end thereof the roller or knob f, around which the cord g passes. The size and shape of this blocking-piece d is such that it can be passed edgewise through the slot in b and` then turned around, a circular opening being formed at one end of said slot to allow the square shank to turn and afterward be guided by the slot as slidpalong in it. The blocking-piece is wider than the distance between the back edge of the box at the sides of the slot and the surface of the casing to which the tightener is attached, and the tendency of the cord is to .draw this blocking-piece so as to block or jam it between said parts, and hence, as the width of the blocking-piece prevents further movement, the cord is held by the roller or knobf with the required tightness.

When the -eord is to be tightened up, the wings e e are to be pressed upon,\vhich, acting `between the blocking-piece and roller or knob,

not only causes the entire piece to move, but the cord tends to turn the blocking-piece,

' jamming it tight, so that when pressure is relieved from said wings the parts remain in the position to which they have been moved. By pressing upon the roller or knob f the strain of the cord is taken and the motion turns the blocking-piece in such a direction as to loosen it and allow the blocking-piece and parts to be slid along in b, so as to loosen the cord when necessary.

This cord-tightener is very cheap, as it only consists of two pieces, which may both be o1; cast metal, and the convenience, durability, and neatness will be apparent.

What I claim, and desire to secure by Letters Patent, is-

The blocking-piece d, wings e e, and roller or knob f, formed substantially as specified, when combined with the hollow or box-shaped slide b, as set forth.

In witness whereof I have hereunto set my signature this 24th day of May, 1862,

y E. M. J UDD.

Witnesses:

LEMUEL "W. SERRELL, TBos. GEO. HAROLD. 

